path: root/target/linux/rdc/patches-2.6.23/002-r6040_ethernet.patch

diff -urN linux-2.6.17/drivers/net/Kconfig linux-2.6.17.new/drivers/net/Kconfig
--- linux-2.6.17/drivers/net/Kconfig	2006-06-18 03:49:35.000000000 +0200
+++ linux-2.6.17.new/drivers/net/Kconfig	2006-09-25 13:14:27.000000000 +0200
@@ -1358,6 +1358,24 @@
 	  <file:Documentation/networking/net-modules.txt>.  The module will be
 	  called apricot.
 
+config R6040
+	tristate "RDC Fast-Ethernet support (EXPERIMENTAL)"
+	depends on NET_PCI && EXPERIMENTAL
+	select MII
+	help
+	  If you have a network (Ethernet) controller of this type, say Y and
+	  read the Ethernet-HOWTO, available from
+          <http://www.tldp.org/docs.html#howto>.
+
+          To compile this driver as a module, choose M here and read
+          <file:Documentation/networking/net-modules.txt>.  The module will be
+          called r6040.
+
+
+config R6040_NAPI
+	bool "NAPI support for R6040"
+	depends on R6040
+	default y
 config B44
 	tristate "Broadcom 4400 ethernet support (EXPERIMENTAL)"
 	depends on NET_PCI && PCI && EXPERIMENTAL
diff -urN linux-2.6.17/drivers/net/Makefile linux-2.6.17.new/drivers/net/Makefile
--- linux-2.6.17/drivers/net/Makefile	2006-06-18 03:49:35.000000000 +0200
+++ linux-2.6.17.new/drivers/net/Makefile	2006-09-25 13:14:45.000000000 +0200
@@ -106,6 +106,7 @@
 obj-$(CONFIG_NE3210) += ne3210.o 8390.o
 obj-$(CONFIG_NET_SB1250_MAC) += sb1250-mac.o
 obj-$(CONFIG_B44) += b44.o
+obj-$(CONFIG_R6040) += r6040.o
 obj-$(CONFIG_FORCEDETH) += forcedeth.o
 obj-$(CONFIG_NE_H8300) += ne-h8300.o 8390.o
diff -urN linux-2.6.23/drivers/net/r6040.c linux-2.6.23.new/drivers/net/r6040.c
--- linux-2.6.23/drivers/net/r6040.c	2006-06-18 03:49:35.000000000 +0200
+++ linux-2.6.23.new/drivers/net/r6040.c	2006-09-25 13:14:45.000000000 +0200
@@ -0,0 +1,1048 @@
+/* r6040.c: A RDC R6040 FastEthernet driver for linux. */
+/*
+	Re-written 2004 by Sten Wang.
+
+	Copyright 1994-2000 by Donald Becker.
+	Copyright 1993 United States Government as represented by the
+	Director, National Security Agency.	 This software may be used and
+	distributed according to the terms of the GNU General Public License,
+	incorporated herein by reference.
+
+	This driver is for RDC R6040 FastEthernet MAC series.
+	For kernel version after 2.4.22
+
+	Modification List
+	----------	------------------------------------------------
+	10-07-2007	Clean up the driver using checkpatch
+	08-24-2006	Support at linux 2.6.10 above
+	03-24-2006	Support NAPI
+	03-21-2006	By Charies,change spin_lock_irqsave(lp->lock, flags) 
+			to spin_lock_irqsave(&lp->lock, flags)
+			in set_multicast_list
+	03-15-2006      Modify the set_multicast_list ,due to when re-plug the ethernet,
+			it will forget the previous setting
+	07-12-2005	Tim, modify the set_multicast_list
+	03-28-2005	Tim, modify some error mac register offset in 
+			function set_multicast_list
+	03-27-2005	Tim, Add the internal state machine reset
+			Sten, If multicast address more than 4, enter PROM mode
+			Changed rdc to r6040
+	12-22-2004	Sten Init MAC MBCR register=0x012A
+			PHY_CAP = 0x01E1
+
+	Need to Do LIst:
+	1. If multicast address more than 4, use the multicast address hash
+*/
+
+#define DRV_NAME	"r6040"
+#define DRV_VERSION	"0.13"
+#define DRV_RELDATE	"24Aug2006"
+
+/* PHY CHIP Address */
+#define PHY1_ADDR	1	/* For MAC1 */
+#define PHY2_ADDR	2	/* For MAC2 */
+#define PHY_MODE	0x3100	/* PHY CHIP Register 0 */
+#define PHY_CAP		0x01E1	/* PHY CHIP Register 4 */
+
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT  	(6000 * HZ / 1000)
+#define TIMER_WUT	(jiffies + HZ * 1)/* timer wakeup time : 1 second */
+
+/* RDC MAC ID */
+#define RDC_MAC_ID	0x6040
+
+/* RDC MAC I/O Size */
+#define R6040_IO_SIZE	256
+
+/* RDC Chip PCI Command */
+#define R6040_PCI_CMD	0x0005	/* IO, Master */
+
+/* MAX RDC MAC */
+#define MAX_MAC		2
+
+/* MAC setting */
+#define TX_DCNT		0x80	/* TX descriptor count */
+#define RX_DCNT		0x80	/* RX descriptor count */
+#define MAX_BUF_SIZE	0x600
+#define ALLOC_DESC_SIZE	((TX_DCNT+RX_DCNT)*sizeof(struct r6040_descriptor)+0x10)
+#define MBCR_DEFAULT	0x012A	/* MAC Bus Control Register */
+
+/* PHY settings */
+#define ICPLUS_PHY_ID	0x0243
+
+/* Debug enable or not */
+#define RDC_DEBUG	0
+
+#if RDC_DEBUG > 1
+#define RDC_DBUG(msg, value) printk(KERN_ERR "%s %x\n", msg, value);
+#else
+#define RDC_DBUG(msg, value)
+#endif
+
+
+#include <linux/module.h>
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
+#include <linux/moduleparam.h>
+#endif
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/crc32.h>
+#include <linux/spinlock.h>
+
+#include <asm/processor.h>
+#include <asm/bitops.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+MODULE_AUTHOR("Sten Wang <sten.wang@rdc.com.tw>, Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>, Florian Fainelli <florian@openwrt.org>");
+MODULE_LICENSE("GPL");
+#ifdef CONFIG_R6040_NAPI
+MODULE_DESCRIPTION("RDC R6040 NAPI PCI FastEthernet Driver");
+#else
+MODULE_DESCRIPTION("RDC R6040 PCI FastEthernet Driver");
+#endif
+
+#define R6040_INT_MASK			0x0011
+
+struct r6040_descriptor {
+	u16	status, len;		/* 0-3 */
+	u32	buf;			/* 4-7 */
+	u32	ndesc;			/* 8-B */
+	u32	rev1;			/* C-F */
+	char	*vbufp;			/* 10-13 */
+	struct r6040_descriptor *vndescp;	/* 14-17 */
+	struct sk_buff *skb_ptr;	/* 18-1B */
+	u32	rev2;			/* 1C-1F */
+} __attribute__((aligned(32)));
+
+struct r6040_private {
+	struct net_device_stats stats;
+	spinlock_t lock;		/* driver lock */
+	struct timer_list timer;
+	struct pci_dev *pdev;
+
+	struct r6040_descriptor *rx_insert_ptr;
+	struct r6040_descriptor *rx_remove_ptr;
+	struct r6040_descriptor *tx_insert_ptr;
+	struct r6040_descriptor *tx_remove_ptr;
+	u16	tx_free_desc, rx_free_desc, phy_addr, phy_mode;
+	u16	mcr0, mcr1;
+	dma_addr_t desc_dma;
+	char	*desc_pool;
+	u16	switch_sig;
+};
+
+struct r6040_chip_info {
+	const char *name;
+	u16 pci_flags;
+	int io_size;
+	int drv_flags;
+};
+
+#ifdef CONFIG_R6040_NAPI
+static int NAPI_status;
+#endif
+
+static int __devinitdata printed_version;
+#ifdef CONFIG_R6040_NAPI
+static char version[] __devinitdata =
+	KERN_INFO DRV_NAME ": RDC R6040 NAPI net driver, version "DRV_VERSION " (" DRV_RELDATE ")\n";
+#else
+static char version[] __devinitdata =
+	KERN_INFO DRV_NAME ": RDC R6040 net driver, version "DRV_VERSION " (" DRV_RELDATE ")\n";
+#endif
+static struct r6040_chip_info r6040_chip_info[] __devinitdata =
+{
+	{ "RDC R6040 Knight", R6040_PCI_CMD, R6040_IO_SIZE, 0}
+};
+static char *parent;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
+static int NUM_MAC_TABLE = 2 ;
+module_param(parent, charp, 0444);
+#else
+MODULE_PARM(parent, "s");
+#endif
+MODULE_PARM_DESC(parent, "Parent network device name");
+
+static int phy_table[] = { 0x1, 0x2};
+static u8 adr_table[2][8] = {
+	{0x00, 0x00, 0x60, 0x00, 0x00, 0x01},
+	{0x00, 0x00, 0x60, 0x00, 0x00, 0x02}
+};
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10)
+	module_param_array(adr_table, int, &NUM_MAC_TABLE, 0644);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
+	module_param_array(adr_table, int, NUM_MAC_TABLE, 0644);
+#else
+	MODULE_PARM(adr_table, "2-4i");
+#endif
+MODULE_PARM_DESC(adr_table, "MAC Address (assigned)");
+
+static int r6040_open(struct net_device *dev);
+static int r6040_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t r6040_interrupt(int irq, void *dev_id);
+static struct net_device_stats *r6040_get_stats(struct net_device *dev);
+static int r6040_close(struct net_device *dev);
+static void set_multicast_list(struct net_device *dev);
+static struct ethtool_ops netdev_ethtool_ops;
+static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
+static void r6040_down(struct net_device *dev);
+static void r6040_up(struct net_device *dev);
+static void r6040_tx_timeout (struct net_device *dev);
+static void r6040_timer(unsigned long);
+
+static int phy_mode_chk(struct net_device *dev);
+static int phy_read(int ioaddr, int phy_adr, int reg_idx);
+static void phy_write(int ioaddr, int phy_adr, int reg_idx, int dat);
+static void rx_buf_alloc(struct r6040_private *lp, struct net_device *dev);
+#ifdef CONFIG_R6040_NAPI
+static int r6040_poll(struct net_device *netdev, int *budget);
+#endif
+
+
+static int __devinit r6040_init_one (struct pci_dev *pdev,
+					 const struct pci_device_id *ent)
+{
+	struct net_device *dev;
+	struct r6040_private *lp;
+	int ioaddr, io_size, err;
+	static int card_idx = -1;
+	int chip_id = (int)ent->driver_data;
+
+	RDC_DBUG("r6040_init_one()", 0);
+
+	if (printed_version++)
+		printk(KERN_INFO "%s\n", version);
+
+	err = pci_enable_device(pdev);
+	if (err)
+		return err;
+
+	/* this should always be supported */
+	if (pci_set_dma_mask(pdev, 0xffffffff)) {
+		printk(KERN_ERR DRV_NAME "32-bit PCI DMA addresses not supported by the card!?\n");
+		return  -ENODEV;
+	}
+
+	/* IO Size check */
+	io_size = r6040_chip_info[chip_id].io_size;
+	if (pci_resource_len  (pdev, 0) < io_size) {
+		return  -ENODEV;
+	}
+
+	ioaddr = pci_resource_start (pdev, 0);	/* IO map base address */
+	pci_set_master(pdev);
+
+	dev = alloc_etherdev(sizeof(struct r6040_private));
+	if (dev == NULL)
+		return -ENOMEM;
+	SET_MODULE_OWNER(dev);
+
+	if (pci_request_regions(pdev, DRV_NAME)) {
+		printk(KERN_ERR DRV_NAME ": Failed to request PCI regions\n");
+		err = -ENODEV;
+		goto err_out_disable;
+	}
+
+	/* Init system & device */
+	lp = dev->priv;
+	dev->base_addr = ioaddr;
+	dev->irq = pdev->irq;
+
+	spin_lock_init(&lp->lock);
+	pci_set_drvdata(pdev, dev);
+
+	/* Set MAC address */
+	card_idx++;
+	memcpy(dev->dev_addr, (u8 *)&adr_table[card_idx][0], 6);
+
+	/* Link new device into r6040_root_dev */
+	lp->pdev = pdev;
+
+	/* Init RDC private data */
+	lp->mcr0 = 0x1002;
+	lp->phy_addr = phy_table[card_idx];
+	lp->switch_sig = 0;
+
+	/* The RDC-specific entries in the device structure. */
+	dev->open = &r6040_open;
+	dev->hard_start_xmit = &r6040_start_xmit;
+	dev->stop = &r6040_close;
+	dev->get_stats = &r6040_get_stats;
+	dev->set_multicast_list = &set_multicast_list;
+	dev->do_ioctl = &netdev_ioctl;
+	dev->ethtool_ops = &netdev_ethtool_ops;
+	dev->tx_timeout = &r6040_tx_timeout;
+	dev->watchdog_timeo = TX_TIMEOUT;
+#ifdef CONFIG_R6040_NAPI
+	dev->poll = &r6040_poll;
+	dev->weight = 64;
+#endif
+
+	/* Register net device. After this dev->name assign */
+	err = register_netdev(dev);
+	if (err) {
+		printk(KERN_ERR DRV_NAME ": Failed to register net device\n");
+		goto err_out_res;
+	}
+
+	netif_carrier_on(dev);
+	return 0;
+
+err_out_res:
+	pci_release_regions(pdev);
+err_out_disable:
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+	kfree(dev);
+
+	return err;
+}
+
+static void __devexit r6040_remove_one (struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	
+	unregister_netdev(dev);
+	pci_release_regions(pdev);
+	kfree(dev);
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+}
+
+static int
+r6040_open(struct net_device *dev)
+{
+	struct r6040_private *lp = dev->priv;
+	int i;
+
+	RDC_DBUG("r6040_open()", 0);
+
+	/* Request IRQ and Register interrupt handler */
+	i = request_irq(dev->irq, &r6040_interrupt, SA_SHIRQ, dev->name, dev);
+	if (i) return i;
+
+	/* Allocate Descriptor memory */
+	lp->desc_pool = pci_alloc_consistent(lp->pdev, ALLOC_DESC_SIZE, &lp->desc_dma);
+	if (!lp->desc_pool)
+		return -ENOMEM;
+
+	r6040_up(dev);
+
+	netif_start_queue(dev);
+
+	if (lp->switch_sig != ICPLUS_PHY_ID) {
+		/* set and active a timer process */
+		init_timer(&lp->timer);
+		lp->timer.expires = TIMER_WUT;
+		lp->timer.data = (unsigned long)dev;
+		lp->timer.function = &r6040_timer;
+		add_timer(&lp->timer);
+	}
+	return 0;
+}
+
+static void
+r6040_tx_timeout (struct net_device *dev)
+{
+	struct r6040_private *lp = dev->priv;
+	/* int ioaddr = dev->base_addr;
+	struct r6040_descriptor *descptr = lp->tx_remove_ptr; */
+
+	RDC_DBUG("r6040_tx_timeout()", 0);
+
+	/* Transmitter timeout, serious problems. */
+	/* Sten: Nothing need to do so far. */
+	printk(KERN_ERR DRV_NAME ": Big Trobule, transmit timeout/n");
+	lp->stats.tx_errors++;
+	netif_stop_queue(dev);
+
+//printk("<RDC> XMT timedout: CR0 %x, CR40 %x, CR3C %x, CR2C %x, CR30 %x, CR34 %x, CR38 %x\n", inw(ioaddr), inw(ioaddr+0x40), inw(ioaddr+0x3c), inw(ioaddr+0x2c), inw(ioaddr+0x30), inw(ioaddr+0x34), inw(ioaddr+0x38));
+
+//printk("<RDC> XMT_TO: %08lx:%04x %04x %08lx %08lx %08lx %08lx\n", descptr, descptr->status, descptr->len, descptr->buf, descptr->skb_ptr, descptr->ndesc, descptr->vndescp);
+}
+
+
+static int
+r6040_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct r6040_private *lp = dev->priv;
+	struct r6040_descriptor *descptr;
+	int ioaddr = dev->base_addr;
+	unsigned long flags;
+
+	RDC_DBUG("r6040_start_xmit()", 0);
+
+	if (skb == NULL)	/* NULL skb directly return */
+		return 0;
+	if (skb->len >= MAX_BUF_SIZE) {	/* Packet too long, drop it */
+		dev_kfree_skb(skb);
+		return 0;
+	}
+
+	/* Critical Section */
+	spin_lock_irqsave(&lp->lock, flags);
+
+	/* TX resource check */
+	if (!lp->tx_free_desc) { 
+		spin_unlock_irqrestore(&lp->lock, flags);
+		printk(KERN_ERR DRV_NAME ": NO TX DESC ");
+		return 1;
+	}
+
+	/* Statistic Counter */
+	lp->stats.tx_packets++;
+	lp->stats.tx_bytes += skb->len;
+	
+	/* Set TX descriptor & Transmit it */
+	lp->tx_free_desc--;
+	descptr = lp->tx_insert_ptr;
+	if (skb->len < 0x3c)
+		descptr->len = 0x3c;
+	else
+		descptr->len = skb->len;
+
+	descptr->skb_ptr = skb;
+	descptr->buf = cpu_to_le32(pci_map_single(lp->pdev, skb->data, skb->len, PCI_DMA_TODEVICE));
+	descptr->status = 0x8000;
+	outw(0x01, ioaddr + 0x14);
+	lp->tx_insert_ptr = descptr->vndescp;
+
+#if RDC_DEBUG
+ printk("Xmit(): %08lx:%04x %04x %08lx %08lx %08lx %08lx\n", descptr, descptr->status, descptr->len, descptr->buf, descptr->skb_ptr, descptr->ndesc, descptr->vndescp);
+#endif
+
+	/* If no tx resource, stop */
+	if (!lp->tx_free_desc) 
+		netif_stop_queue(dev);
+
+	dev->trans_start = jiffies;
+	spin_unlock_irqrestore(&lp->lock, flags);
+	return 0;
+}
+
+/* The RDC interrupt handler. */
+static irqreturn_t
+r6040_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	struct r6040_private *lp;
+	struct r6040_descriptor *descptr;
+	struct sk_buff *skb_ptr;
+	int ioaddr, status;
+	unsigned long flags;
+#ifdef CONFIG_R6040_NAPI
+	int handled = 1;
+#else
+	int handled = 0;
+#endif
+
+	RDC_DBUG("r6040_interrupt()", 0);
+	if (dev == NULL) {
+		printk (KERN_ERR DRV_NAME ": INT() unknown device.\n");
+		return IRQ_RETVAL(handled);
+	}
+
+	lp = (struct r6040_private *)dev->priv;
+	spin_lock_irqsave(&lp->lock, flags);
+
+	/* Check MAC Interrupt status */
+	ioaddr = dev->base_addr;
+	outw(0x0, ioaddr + 0x40);	/* Mask Off RDC MAC interrupt */
+	status = inw(ioaddr + 0x3c);	/* Read INTR status and clear */
+	
+
+#ifdef CONFIG_R6040_NAPI
+	if (netif_rx_schedule_prep(dev)) {
+	    	NAPI_status = status;
+		__netif_rx_schedule(dev);
+	}
+
+	spin_unlock_irqrestore(&lp->lock, flags);
+	return IRQ_RETVAL(handled);
+#else		
+	/* TX interrupt request */
+	if (status & 0x10) {
+		handled = 1;
+		descptr = lp->tx_remove_ptr;
+		while (lp->tx_free_desc < TX_DCNT) {
+			if (descptr->status & 0x8000)
+				break; /* Not complte */
+			skb_ptr = descptr->skb_ptr;
+			pci_unmap_single(lp->pdev, descptr->buf, skb_ptr->len, PCI_DMA_TODEVICE);
+			dev_kfree_skb_irq(skb_ptr); /* Free buffer */
+			descptr->skb_ptr = 0;
+			descptr = descptr->vndescp; /* To next descriptor */
+			lp->tx_free_desc++;
+		}
+		lp->tx_remove_ptr = descptr;
+		if (lp->tx_free_desc)
+			netif_wake_queue(dev);
+	} 
+
+	/* RX interrupt request */
+	if (status & 0x01) {
+		handled = 1;
+		descptr = lp->rx_remove_ptr;
+		while(lp->rx_free_desc) {
+			if (descptr->status & 0x8000) break; /* No Rx packet */
+			skb_ptr = descptr->skb_ptr;
+			descptr->skb_ptr = 0;
+			skb_ptr->dev = dev;
+			skb_put(skb_ptr, descptr->len - 4);
+			pci_unmap_single(lp->pdev, descptr->buf, MAX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+             		skb_ptr->protocol = eth_type_trans(skb_ptr, dev);
+             		netif_rx(skb_ptr);  /* Send to upper layer */
+			lp->stats.rx_packets++;
+			lp->stats.rx_bytes += descptr->len;
+			descptr = descptr->vndescp; /* To next descriptor */
+			lp->rx_free_desc--;
+		}
+		lp->rx_remove_ptr = descptr;
+	}
+
+	/* Allocate new RX buffer */
+	if (lp->rx_free_desc < RX_DCNT) rx_buf_alloc(lp,dev);
+
+	outw(R6040_INT_MASK, ioaddr + 0x40);	/* TX/RX interrupt enable */
+	spin_unlock_irqrestore(&lp->lock, flags);
+#endif
+	return IRQ_RETVAL(handled);
+}
+
+
+static struct net_device_stats *
+r6040_get_stats(struct net_device *dev)
+{
+	struct r6040_private *lp = dev->priv;
+
+	RDC_DBUG("r6040_get_stats()", 0);
+	return &lp->stats;
+}
+
+/*
+ *     Set or clear the multicast filter for this adaptor.
+ */
+static void
+set_multicast_list(struct net_device *dev)
+{
+	struct r6040_private *lp = dev->priv;
+	struct dev_mc_list *mcptr;
+	int ioaddr = dev->base_addr;
+	u16 *adrp, i;
+	unsigned long flags;
+
+	RDC_DBUG("set_multicast_list()", 0);
+
+	/* MAC Address */
+	adrp = (u16 *) dev->dev_addr;
+	outw(adrp[0], ioaddr + 0x68);
+	outw(adrp[1], ioaddr + 0x6A);
+	outw(adrp[2], ioaddr + 0x6C);
+
+
+#if RDC_DEBUG
+	printk("MAC ADDR: %04x %04x %04x\n", adrp[0], adrp[1], adrp[2]);
+#endif
+
+	/* Promiscous Mode */
+	spin_lock_irqsave(&lp->lock, flags);
+	i = inw(ioaddr) & ~0x0120;		/* Clear AMCP & PROM */
+	if (dev->flags & IFF_PROMISC) {
+		i |= 0x0020;
+		lp->mcr0 |= 0x0020;
+	}
+	if (dev->mc_count > 4)
+		i |= 0x0020;	/* Too many multicast address */
+
+	outw(i, ioaddr);
+	spin_unlock_irqrestore(&lp->lock, flags);
+	
+	/* Multicast Address */
+	if (dev->mc_count > 4)	/* Wait to do: Hash Table for multicast */
+		return;
+
+	/* Multicast Address 1~4 case */
+	for (i = 0, mcptr = dev->mc_list; (i < dev->mc_count) && (i < 4); i++) {
+		adrp = (u16 *)mcptr->dmi_addr;
+		outw(adrp[0], ioaddr + 0x70 + 8*i);
+		outw(adrp[1], ioaddr + 0x72 + 8*i);
+		outw(adrp[2], ioaddr + 0x74 + 8*i);
+		mcptr = mcptr->next;
+#if RDC_DEBUG
+	printk("M_ADDR: %04x %04x %04x\n", adrp[0], adrp[1], adrp[2]);
+#endif
+	}
+	for (i = dev->mc_count; i < 4; i++) {
+		outw(0xffff, ioaddr + 0x68 + 8*i);
+		outw(0xffff, ioaddr + 0x6A + 8*i);
+		outw(0xffff, ioaddr + 0x6C + 8*i);
+	}
+}
+
+static void netdev_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info)
+{
+	struct r6040_private *rp = dev->priv;
+
+	strcpy (info->driver, DRV_NAME);
+	strcpy (info->version, DRV_VERSION);
+	strcpy (info->bus_info, pci_name(rp->pdev));
+}
+
+static struct ethtool_ops netdev_ethtool_ops = {
+	.get_drvinfo		= netdev_get_drvinfo,
+};
+
+static int
+r6040_close(struct net_device *dev)
+{
+	struct r6040_private *lp = dev->priv;
+
+	RDC_DBUG("r6040_close()", 0);
+
+ 	/* deleted timer */
+	del_timer_sync(&lp->timer);
+
+	spin_lock_irq(&lp->lock);
+
+	netif_stop_queue(dev);
+
+	r6040_down(dev);
+
+	spin_unlock_irq(&lp->lock);
+
+	return 0;
+}
+
+static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
+{
+	struct r6040_private *lp = dev->priv;
+
+	RDC_DBUG("netdev_ioctl()", 0);
+
+	if (lp->switch_sig == ICPLUS_PHY_ID && cmd == SIOCDEVPRIVATE) {
+		unsigned long *data = (unsigned long *)rq->ifr_data, args[4];
+		int ioaddr = dev->base_addr;
+		unsigned int val;
+
+		data = (unsigned long *)rq->ifr_data;
+		if (copy_from_user(args, data, 4*sizeof(unsigned long)))
+			return -EFAULT;
+
+		/* port priority */
+		if(args[0]&(1<<31))phy_write(ioaddr, 29, 19, (phy_read(ioaddr, 29, 19) | 0x2000));	/* port 0 */
+		if(args[0]&(1<<29))phy_write(ioaddr, 29, 19, (phy_read(ioaddr, 29, 19) | 0x0020));	/* port 1 */
+		if(args[0]&(1<<27))phy_write(ioaddr, 29, 20, (phy_read(ioaddr, 29, 20) | 0x2000));	/* port 2 */
+		if(args[0]&(1<<25))phy_write(ioaddr, 29, 20, (phy_read(ioaddr, 29, 20) | 0x0020));	/* port 3 */
+
+	}
+	return -EOPNOTSUPP;
+}
+
+/**
+	Stop RDC MAC and Free the allocated resource
+ */
+static void r6040_down(struct net_device *dev)
+{
+	struct r6040_private *lp = dev->priv;
+	int i;
+	int ioaddr = dev->base_addr;
+
+	RDC_DBUG("r6040_down()", 0);
+
+	/* Stop MAC */
+	outw(0x0000, ioaddr + 0x40);	/* Mask Off Interrupt */
+	outw(0x0001, ioaddr + 0x04);	/* Reset RDC MAC */
+	i = 0;
+	do{}while((i++ < 2048) && (inw(ioaddr + 0x04) & 0x1));
+	
+	free_irq(dev->irq, dev);
+
+	/* Free RX buffer */
+	for (i = 0; i < RX_DCNT; i++) {
+		if (lp->rx_insert_ptr->skb_ptr) {
+			pci_unmap_single(lp->pdev, lp->rx_insert_ptr->buf, MAX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+			dev_kfree_skb(lp->rx_insert_ptr->skb_ptr);
+			lp->rx_insert_ptr->skb_ptr = 0;
+		}
+		lp->rx_insert_ptr = lp->rx_insert_ptr->vndescp;
+	}
+
+	/* Free TX buffer */
+	for (i = 0; i < TX_DCNT; i++) {
+		if (lp->tx_insert_ptr->skb_ptr) {
+			pci_unmap_single(lp->pdev, lp->tx_insert_ptr->buf, MAX_BUF_SIZE, PCI_DMA_TODEVICE);
+			dev_kfree_skb(lp->tx_insert_ptr->skb_ptr);
+			lp->rx_insert_ptr->skb_ptr = 0;
+		}
+		lp->tx_insert_ptr = lp->tx_insert_ptr->vndescp;
+	}
+
+	/* Free Descriptor memory */
+	pci_free_consistent(lp->pdev, ALLOC_DESC_SIZE, lp->desc_pool, lp->desc_dma);
+}
+
+
+
+#ifdef CONFIG_R6040_NAPI
+static int r6040_poll(struct net_device *dev, int *budget)
+{
+	struct r6040_private *lp;
+	struct r6040_descriptor *descptr;
+	struct sk_buff *skb_ptr;
+	int ioaddr, status;
+	unsigned long flags;
+	
+	
+	ioaddr = dev->base_addr;
+	lp = (struct r6040_private *)dev->priv;
+	unsigned long rx_work = dev->quota;
+	unsigned long rx;	
+#if 1
+	/* TX interrupt request */
+	if (NAPI_status & 0x10) {
+		descptr = lp->tx_remove_ptr;
+		while (lp->tx_free_desc < TX_DCNT) {
+			if (descptr->status & 0x8000)
+				break; /* Not complte */
+			
+			skb_ptr = descptr->skb_ptr;
+			pci_unmap_single(lp->pdev, descptr->buf, skb_ptr->len, PCI_DMA_TODEVICE);
+			dev_kfree_skb_irq(skb_ptr); /* Free buffer */
+			descptr->skb_ptr = 0;
+			descptr = descptr->vndescp; /* To next descriptor */
+			lp->tx_free_desc++;
+		}
+		lp->tx_remove_ptr = descptr;
+		if (lp->tx_free_desc) netif_wake_queue(dev);
+	}
+#endif	
+#if 1
+	/* RX interrupt request */
+	if (NAPI_status & 0x01) {
+		descptr = lp->rx_remove_ptr;
+		while (lp->rx_free_desc) {
+			if (descptr->status & 0x8000)
+				break; /* No Rx packet */
+			skb_ptr = descptr->skb_ptr;
+			descptr->skb_ptr = 0;
+			skb_ptr->dev = dev;
+			skb_put(skb_ptr, descptr->len - 4);
+			pci_unmap_single(lp->pdev, descptr->buf, MAX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+			skb_ptr->protocol = eth_type_trans(skb_ptr, dev);
+			netif_receive_skb(skb_ptr); /* Send to upper layer */
+			lp->stats.rx_packets++;
+			lp->stats.rx_bytes += descptr->len;
+			descptr = descptr->vndescp; /* To next descriptor */
+			lp->rx_free_desc--;
+		}
+		lp->rx_remove_ptr = descptr;
+	}
+	/* Allocate new RX buffer */
+	if (lp->rx_free_desc < RX_DCNT)
+		rx_buf_alloc(lp, dev);
+	
+	local_irq_disable();
+	netif_rx_complete(dev);
+	outw(R6040_INT_MASK, ioaddr + 0x40);
+	local_irq_enable();
+	return 0;
+#endif		
+}
+#endif
+
+/* Init RDC MAC */
+static void r6040_up(struct net_device *dev)
+{
+	struct r6040_private *lp = dev->priv;
+	struct r6040_descriptor *descptr;
+	int i;
+	int ioaddr = dev->base_addr;
+	u32 tmp_addr;
+	dma_addr_t desc_dma, start_dma;
+	
+	RDC_DBUG("r6040_up()", 0);
+
+	/* Initilize */
+	lp->tx_free_desc = TX_DCNT;
+	lp->rx_free_desc = 0;
+
+	/* Init descriptor */
+	memset(lp->desc_pool, 0, ALLOC_DESC_SIZE); /* Let all descriptor = 0 */
+	lp->tx_insert_ptr = (struct r6040_descriptor *)lp->desc_pool;
+	lp->tx_remove_ptr = lp->tx_insert_ptr;
+	lp->rx_insert_ptr = (struct r6040_descriptor *)lp->tx_insert_ptr+TX_DCNT;
+	lp->rx_remove_ptr = lp->rx_insert_ptr;
+
+	/* Init TX descriptor */
+	descptr = lp->tx_insert_ptr;
+	desc_dma = lp->desc_dma;
+	start_dma = desc_dma;
+	for (i = 0; i < TX_DCNT; i++) {
+		descptr->ndesc = cpu_to_le32(desc_dma + sizeof(struct r6040_descriptor));
+		descptr->vndescp = (descptr + 1);
+		descptr = (descptr + 1);
+		desc_dma += sizeof(struct r6040_descriptor);
+	}
+	(descptr - 1)->ndesc = cpu_to_le32(start_dma);
+	(descptr - 1)->vndescp = lp->tx_insert_ptr;
+
+	/* Init RX descriptor */
+	start_dma = desc_dma;
+	descptr = lp->rx_insert_ptr;
+	for (i = 0; i < RX_DCNT; i++) {
+		descptr->ndesc = cpu_to_le32(desc_dma + sizeof(struct r6040_descriptor));
+		descptr->vndescp = (descptr + 1);
+		descptr = (descptr + 1);
+		desc_dma += sizeof(struct r6040_descriptor);
+	}
+	(descptr - 1)->ndesc = cpu_to_le32(start_dma);
+	(descptr - 1)->vndescp = lp->rx_insert_ptr;
+
+	/* Allocate buffer for RX descriptor */
+	rx_buf_alloc(lp, dev);
+
+#if RDC_DEBUG
+descptr = lp->tx_insert_ptr;
+for (i = 0; i < TX_DCNT; i++) {
+ printk("%08lx:%04x %04x %08lx %08lx %08lx %08lx\n", descptr, descptr->status, descptr->len, descptr->buf, descptr->skb_ptr, descptr->ndesc, descptr->vndescp);
+ descptr = descptr->vndescp;
+}
+descptr = lp->rx_insert_ptr;
+for (i = 0; i < RX_DCNT; i++) {
+ printk("%08lx:%04x %04x %08lx %08lx %08lx %08lx\n", descptr, descptr->status, descptr->len, descptr->buf, descptr->skb_ptr, descptr->ndesc, descptr->vndescp);
+ descptr = descptr->vndescp;
+}
+#endif
+
+	/* MAC operation register */
+	outw(0x01, ioaddr+0x04);	/* Reset MAC */
+        outw(2, ioaddr+0xAC);		/* Reset internal state machine */
+	outw(0, ioaddr+0xAC);
+	udelay(5000);
+
+	/* TX and RX descriptor start Register */
+	tmp_addr = cpu_to_le32(lp->tx_insert_ptr);
+	tmp_addr = virt_to_bus((volatile void *)tmp_addr);
+	outw((u16) tmp_addr, ioaddr+0x2c);
+	outw(tmp_addr >> 16, ioaddr+0x30);
+	tmp_addr = cpu_to_le32(lp->rx_insert_ptr);
+	tmp_addr = virt_to_bus((volatile void *)tmp_addr);
+	outw((u16) tmp_addr, ioaddr+0x34);
+	outw(tmp_addr >> 16, ioaddr+0x38);
+
+	/* Buffer Size Register */
+	outw(MAX_BUF_SIZE, ioaddr+0x18);
+
+	if ((lp->switch_sig = phy_read(ioaddr, 0, 2)) == ICPLUS_PHY_ID) {
+		phy_write(ioaddr, 29,31, 0x175C); /* Enable registers */
+		lp->phy_mode = 0x8000;
+	} else {
+		/* PHY Mode Check */
+		phy_write(ioaddr, lp->phy_addr, 4, PHY_CAP);
+		phy_write(ioaddr, lp->phy_addr, 0, PHY_MODE);
+
+		if (PHY_MODE == 0x3100)
+			lp->phy_mode = phy_mode_chk(dev);
+		else
+			lp->phy_mode = (PHY_MODE & 0x0100) ? 0x8000:0x0;
+	}
+	/* MAC Bus Control Register */
+	outw(MBCR_DEFAULT, ioaddr+0x8);
+
+	/* MAC TX/RX Enable */
+	lp->mcr0 |= lp->phy_mode;
+	outw(lp->mcr0, ioaddr);
+
+	/* set interrupt waiting time and packet numbers */
+	outw(0x0802, ioaddr + 0x0C);
+	outw(0x0802, ioaddr + 0x10);
+
+	/* upgrade performance (by RDC guys) */
+	phy_write(ioaddr, 30, 17, (phy_read(ioaddr, 30, 17) | 0x4000));        //bit 14=1
+	phy_write(ioaddr, 30, 17, ~((~phy_read(ioaddr, 30, 17)) | 0x2000));    //bit 13=0
+	phy_write(ioaddr, 0, 19, 0x0000);
+	phy_write(ioaddr, 0, 30, 0x01F0);
+
+	/* Interrupt Mask Register */
+	outw(R6040_INT_MASK, ioaddr + 0x40);
+}
+
+/*
+  A periodic timer routine
+	Polling PHY Chip Link Status
+*/
+static void r6040_timer(unsigned long data)
+{
+	struct net_device *dev = (struct net_device *)data;
+	struct r6040_private *lp = dev->priv;
+	u16 ioaddr = dev->base_addr, phy_mode;
+
+ 	RDC_DBUG("r6040_timer()", 0);
+
+	/* Polling PHY Chip Status */
+	if (PHY_MODE == 0x3100) 
+		phy_mode = phy_mode_chk(dev);
+	else
+		phy_mode = (PHY_MODE & 0x0100) ? 0x8000:0x0;
+
+	if (phy_mode != lp->phy_mode) {
+		lp->phy_mode = phy_mode;
+		lp->mcr0 = (lp->mcr0 & 0x7fff) | phy_mode;
+		outw(lp->mcr0, ioaddr);
+		printk(KERN_INFO "Link Change %x \n", inw(ioaddr));
+	}
+
+	/* Debug */
+//	printk("<RDC> Timer: CR0 %x CR40 %x CR3C %x\n", inw(ioaddr), inw(ioaddr+0x40), inw(ioaddr+0x3c));
+
+	/* Timer active again */
+	lp->timer.expires = TIMER_WUT;
+	add_timer(&lp->timer);
+}
+
+/* Allocate skb buffer for rx descriptor */
+static void rx_buf_alloc(struct r6040_private *lp, struct net_device *dev)
+{
+	struct r6040_descriptor *descptr;
+	int ioaddr = dev->base_addr ;
+
+	RDC_DBUG("rx_buf_alloc()", 0);
+
+	descptr = lp->rx_insert_ptr;
+	while (lp->rx_free_desc < RX_DCNT) {
+		descptr->skb_ptr = dev_alloc_skb(MAX_BUF_SIZE);
+
+		if (!descptr->skb_ptr)
+			break;
+		descptr->buf = cpu_to_le32(pci_map_single(lp->pdev, descptr->skb_ptr->tail, MAX_BUF_SIZE, PCI_DMA_FROMDEVICE));
+		descptr->status = 0x8000;
+		descptr = descptr->vndescp;
+		lp->rx_free_desc++;
+		outw(lp->mcr0 | 0x0002, ioaddr); /* Trigger Rx DMA */
+	}
+	lp->rx_insert_ptr = descptr;
+}
+
+/* Status of PHY CHIP */
+static int phy_mode_chk(struct net_device *dev)
+{
+	struct r6040_private *lp = dev->priv;
+	int ioaddr = dev->base_addr, phy_dat;
+
+	RDC_DBUG("phy_mode_chk()", 0);
+
+	/* PHY Link Status Check */
+	phy_dat = phy_read(ioaddr, lp->phy_addr, 1);
+	if (!(phy_dat & 0x4))
+		return 0x8000;	/* Link Failed, full duplex */
+
+	/* PHY Chip Auto-Negotiation Status */
+	phy_dat = phy_read(ioaddr, lp->phy_addr, 1);
+	if (phy_dat & 0x0020) {
+		/* Auto Negotiation Mode */
+		phy_dat = phy_read(ioaddr, lp->phy_addr, 5);
+		phy_dat &= phy_read(ioaddr, lp->phy_addr, 4);
+		if (phy_dat & 0x140)
+			phy_dat = 0x8000;
+		else
+			phy_dat = 0;
+	} else {
+		/* Force Mode */
+		phy_dat = phy_read(ioaddr, lp->phy_addr, 0);
+		if (phy_dat & 0x100) phy_dat = 0x8000;
+		else phy_dat = 0x0000;
+	}
+
+	return phy_dat;
+};
+
+/* Read a word data from PHY Chip */
+static int phy_read(int ioaddr, int phy_addr, int reg_idx)
+{
+	int i = 0;
+
+	RDC_DBUG("phy_read()", 0);
+	outw(0x2000 + reg_idx + (phy_addr << 8), ioaddr + 0x20);
+	do {} while ((i++ < 2048) && (inw(ioaddr + 0x20) & 0x2000));
+
+	return inw(ioaddr + 0x24);
+}
+
+/* Write a word data from PHY Chip */
+static void phy_write(int ioaddr, int phy_addr, int reg_idx, int dat)
+{
+	int i = 0;
+
+	RDC_DBUG("phy_write()", 0);
+	outw(dat, ioaddr + 0x28);
+	outw(0x4000 + reg_idx + (phy_addr << 8), ioaddr + 0x20);
+	do{}while( (i++ < 2048) && (inw(ioaddr + 0x20) & 0x4000) );
+}
+
+enum {
+	RDC_6040 = 0
+};
+
+static struct pci_device_id r6040_pci_tbl[] = {
+	{PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6040, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RDC_6040},
+	/*{0x1106, 0x3065, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RDC_6040},*/
+	{0,}
+};
+MODULE_DEVICE_TABLE(pci, r6040_pci_tbl);
+
+static struct pci_driver r6040_driver = {
+	.name		= "r6040",
+	.id_table	= r6040_pci_tbl,
+	.probe		= r6040_init_one,
+	.remove		= __devexit_p(r6040_remove_one),
+};
+
+
+static int __init r6040_init (void)
+{
+	RDC_DBUG("r6040_init()", 0);
+
+	printk(KERN_INFO "%s\n", version);
+	printed_version = 1;
+
+	if (parent != NULL) {
+		struct net_device *the_parent = dev_get_by_name(parent);
+
+		if (the_parent == NULL) {
+			printk (KERN_ERR DRV_NAME ": Unknown device \"%s\" specified.\n", parent);
+			return -EINVAL;
+		}
+		memcpy((u8 *)&adr_table[0][0], the_parent->dev_addr, 6);
+		memcpy((u8 *)&adr_table[1][0], the_parent->dev_addr, 6);
+		++*(u8 *)&adr_table[0][5];
+	}
+	return pci_register_driver (&r6040_driver);
+}
+
+
+static void __exit r6040_cleanup (void)
+{
+	RDC_DBUG("r6040_cleanup()", 0);
+	pci_unregister_driver (&r6040_driver);
+}
+
+module_init(r6040_init);
+module_exit(r6040_cleanup);